Natural building is the construction of buildings using systems and materials that emphasize sustainability. This in turn implies durability and the use of minimally processed, plentiful or renewable resources, as well as those that, while recycled or salvaged, produce healthy living environments and maintain indoor air quality.

Natural Building refers to the use of materials in the building process that is locally sourced, natural and kind to the environment. Natural buildings typically produce much of their own energy through the smart use of materials and combination of passive design features to enhance insulation and thermal mass properties.

One such notion is "Natural Building," a sustainable building technique that is believed to minimize the environmental impact of our housing and structure needs. Natural building can be defined loosely as any building system that places the highest value on social and environmental sustainability.

"Natural building" is an umbrella term than connotes any sort of building that is accomplished with the use of natural materials primarily, as opposed to the use of man-made or industrial materials.

Natural building is similar to green building. It seeks to reduce the environmental impact of our dwellings without sacrificing health or comfort. Green building often includes materials that many see as unhealthy or not natural.